A. By reasoning we mean the mental process of drawing an inference from two or more statements or going from the inference to the statements which yield that inference. B. So logical reasoning covers those types of questions which imply drawing an inference from the problems.
C. Logic means, if we take its original meaning, the science of valid reasoning.
D. Clearly, for understanding arguments and for drawing the inference correctly it is necessary that we should understand the statements first.
(CAT 1998)
(C) explains the meaning of logic. (A) states the meaning of reasoning. (B) tells what logical
reasoning covers. (This has to follow from the previous two) (D) states that how we can understand arguments and draw inferences correctly. Hence CABD